Aerator in which parts are rotationally locked

ABSTRACT

In an aerator ( 101, 104, 107, 110, 112 ), the housing ( 2 ) and insertion parts ( 7, 8 ) that can be inserted into the aerator have complementary tooth arrangements which mesh with each other when the aerator is assembled such that the housing ( 2 ) and the insertion parts ( 7, 8 ) are rotationally locked relative to each other.

TECHNICAL FIELD

The invention relates to a sanitary insertion cartridge having a cartridge housing which can be inserted in a water line or a water outlet of a sanitary outlet fitting and which has at least one water inlet and at least one water discharge, wherein the insertion cartridge is assembled from at least two components which abut each other and/or which are connected to each other and of which at least two adjacent components are fixed in the relative position thereof relative to each other in a circumferential direction by means of a rotation prevention member, and wherein at least one of these adjacent components is in the form of an insertion part which can be inserted into the cartridge housing or a housing portion of the two-piece or multi-piece cartridge housing.

BACKGROUND

There have already been provided aerators which can be mounted at the water outlet of a sanitary outlet fitting. In order to be able to mount such aerators at the water outlet of the sanitary outlet fitting in the simplest manner possible, these aerators are usually in the form of an insertion cartridge, the cartridge housing of which having an external thread which is provided on the housing circumference is screwed into an internal thread which is provided in the water outlet or which can be mounted at the water outlet of the outlet fitting by means of a sleeve-like outlet opening piece.

There is provided in the cartridge housing of such aerators a jet fractionater which divides the throughflow of water into a large number of individual streams. These individual streams can be mixed with drawn-in ambient air in a mixing zone, which is downstream of the jet fractionater, of the cartridge housing. The individual streams which are aerated in this manner are subsequently decelerated in a flow rectifier of the aerator and formed into a homogeneous, non-spraying and where applicable also sparkling, gentle discharge stream. In this case, the flow rectifier, which is downstream of the jet fractionater, of this previously known aerator has a plurality of successive insertion parts which each have a grid structure, net structure or similar hole structure with a large number of throughflow openings. So that the hole structures which are provided in these insertion parts can cooperate with each other, and so that the water stream which flows through one of the throughflow holes of an insertion part at the inflow side strikes one of the intersection nodes of the hole structure which is provided in the insertion part which is located at the discharge side, a positionally accurate orientation of these insertion parts which are adjacent to each other may be advantageous or even necessary. Individual embodiments of the previously known aerators therefore also have a rotation prevention member which is intended to fix the relative position of these adjacent insertion parts relative to each other in a circumferential direction. This rotation prevention member may have, for example, at least one longitudinal groove which is provided at the internal circumference of the cartridge housing and in which at least one longitudinal groove a rotation prevention projection provided on the insertion parts engages. However, such a rotation prevention member formed by at least one longitudinal groove can make in particular the automated assembly of such sanitary insertion cartridges substantially more difficult.

Other sanitary insertion cartridges which are in the form of a backflow prevention valve which is interposed in the water supply line or which have a throughflow quantity regulator or a throughflow throttle alternatively or additionally to an aerator have also been provided. In such sanitary insertion cartridges of the type mentioned in the introduction, a positionally accurate orientation of adjacent components in a circumferential direction may also be desirable or even necessary.

SUMMARY

Therefore, there is particularly the objective of providing a sanitary insertion cartridge of the type mentioned in the introduction which is characterized by a positionally accurate assembly of adjacent and/or mutually connected components.

This object is achieved according to the invention with the insertion cartridge of the type mentioned in the introduction in particular in that, of the at least two adjacent components of the insertion cartridge, at least a first component has, at the front side facing the at least one adjacent second component, a front tooth arrangement of the axially active rotation prevention member, which front tooth arrangement has teeth, and in that

-   -   at least one of the teeth engages in a recess which is provided         in the at least one adjacent second component and/or

at least one projection, which is provided at the adjacent front side of the at least one adjacent second component and which is orientated in the longitudinal housing direction, of the rotation prevention member engages in a tooth base between adjacent teeth of this front tooth arrangement.

The insertion cartridge according to the invention has a cartridge housing which can be interposed in a water line or which can be mounted on the water outlet of a sanitary outlet fitting. So that the insertion cartridge can form the throughflow of water, regulate it, stop it counter to the throughflow direction or otherwise influence it in a functionally correct manner, the cartridge housing has at least one water inlet and at least one water discharge. In this case, the insertion cartridge is assembled from two components which abut each other or which are connected to each other. The at least one first component can therefore, for example, be in the form of an insertion part or a housing portion which cooperates with at least one adjacent second component, which in turn is also in the form of a housing portion or an insertion part. The adjacent components can therefore form a combination comprising an insertion part/insertion part, an insertion part/housing portion or a housing portion/housing portion. In order to fix these components in a relative position relative to each other in a circumferential direction, of the at least two components which are necessary for assembling the insertion cartridge according to the invention, at least a first component has, at the front side facing the at least one adjacent second component, a front tooth arrangement of an axially active rotation prevention member, which front tooth arrangement has teeth, wherein at least one projection which is provided on the adjacent front side of the at least one adjacent second component and which is orientated in the longitudinal housing direction engages in the tooth base between adjacent teeth of this front tooth arrangement. Additionally or alternatively, at least one of the teeth which are provided on the at least one first insertion part can engage in a recess which is provided in the adjacent second component in a rotationally securing manner. Since the rotation prevention member, which forms such a front tooth arrangement, of the insertion cartridge according to the invention makes rotation prevention projections which project outwardly or longitudinal grooves which are provided on the internal circumference unnecessary, the insertion cartridge according to the invention can also be made with a smaller housing diameter without the outlet cross section of the water discharge, which is provided, for example, on the outflow-side front housing face of the cartridge housing, therefore having to be reduced. As a result of the reduced diameter requirement, the insertion cartridge according to the invention is characterized by a more favorable relationship of the stream diameter to the installation diameter. As a result of the self-orientating properties of the front tooth arrangement which is in the form of an axially active rotation prevention member, the assembly of the insertion cartridge according to the invention is simplified in that this assembly can also be carried out simply in an automated manner. Since the front tooth arrangement also compensates for production tolerances, a more precise angular positioning of the mutually adjacent components is achieved. This effect can be used in combination with other contours of these components in order to simplify the production complexity which is required for producing the insertion cartridge according to the invention.

A simple and advantageous embodiment according to the invention provides for at least one recess, of the recesses provided on the at least one adjacent second component, to be in the form of a return.

The rotation prevention member which is provided on the adjacent components which are constructed so as to complement each other becomes located in the desired rotation position particularly readily and easily if the teeth which are provided on the at least one first component are arranged radially relative to the longitudinal housing axis.

The self-orientation of the adjacent components relative to each other is facilitated if a plurality of projections which are spaced apart from each other in a circumferential direction are provided at the front side, adjacent to the at least one first component, of the at least one second component.

The advantages afforded with the rotation prevention member which is in the form of an axially active front tooth arrangement are promoted even further if a counter-profiling of the rotation prevention member engages in the front tooth arrangement which is provided on the at least one first component, which counter-profiling is provided at the adjacent front side of the adjacent second component.

In this case, a preferred development according to the invention makes provision for the at least one first component and the at least one adjacent second component to have axially mutually engaging front tooth arrangements at the front sides which are adjacent to each other as a rotation prevention member. In this case, the teeth form at one front tooth arrangement of the rotation prevention member the projections which engage in the tooth bases of the adjacent front tooth arrangement.

In such an embodiment, therefore, it is advantageous if the teeth of the first front tooth arrangement provided on the at least one first component engage in tooth bases of the second tooth arrangement of the rotation prevention member, which second tooth arrangement is arranged on the at least one adjacent second component of the insertion cartridge and is provided as a counter-profiling.

A preferred development according to the invention which is also characterized by an axial orientation of the mutually adjacent components makes provision for the teeth of the front tooth arrangement provided on the at least one first component and/or on the at least one adjacent second component to incline radially in an outward direction and/or the tooth bases to decline radially in an outward direction.

In order to be able to provide such a front tooth arrangement on a component which is in the form of an insertion part, an advantageous embodiment according to the invention makes provision for a central axle stub or orientation stub which is orientated axially parallel with the longitudinal housing axis to be provided on the at least one first component which is in the form of an insertion part, which axle stub or orientation stub carries the first front tooth arrangement at the front, and for the at least one projection, the counter-profiling or the second front tooth arrangement to be provided at the adjacent front side of the at least one adjacent second component.

To this end, however, it is also possible for a circumferential external ring which carries the first or second front tooth arrangement at at least one of the front sides thereof to be provided on the external circumference of the first component which is in the form of an insertion part and/or the at least one adjacent second component of the insertion cartridge.

In order to be able to orientate a housing portion of the insertion cartridge according to the invention relative to an adjacent other housing portion or to an insertion part which can be inserted in the housing portion, it is advantageous for the at least one second component of the insertion cartridge to be in the form of a housing portion of a multi-piece cartridge housing and for the at least one projection, the counter-profiling or the front tooth arrangement to be provided on a front edge, facing the housing interior, of this housing portion.

Particularly if the front tooth arrangement which is provided on the at least one first component does not cooperate with a front tooth arrangement on the at least one second component and if instead at least one projection is intended to be provided on the at least one second component, it is advantageous if this at least one projection is constructed to be rounded or angular at the free end thereof.

A preferred embodiment according to the invention makes provision for the cartridge housing to have at least one inflow-side housing opening as a water inlet and for the at least one housing opening to be able to be closed by means of a second component which is in the form of a jet fractionater which has jet fractionater openings, which jet fractionater can be locked at the internal housing circumference of the cartridge housing and can in particular be locked in a releasable manner. Additional insertion parts can be inserted in the same simple manner in the housing interior of such a cartridge housing which is formed from at least two housing portions which can be locked together. It is advantageous if there projects on the jet fractionater at least one projection which is orientated axially parallel with the longitudinal housing axis and which cooperates with a front tooth arrangement on the adjacent front edge of the external ring of an adjacent component which is in the form of an insertion part.

So that the at least one rotation prevention member, which forms a front tooth arrangement, of the insertion cartridge according to the invention is already active during assembly, and so that the front tooth arrangement on the at least one first component moves readily together with the projection, the counter-profiling or the front tooth arrangement on the adjacent second component, it is advantageous for the external ring of at least one of these insertion parts to be displaceably guided along the internal housing circumference in the cartridge housing.

The assembly of the insertion cartridge according to the invention is further simplified if there is provided on the internal housing circumference of the cartridge housing an annular shoulder which acts as a sliding stop during the insertion of the at least one component which is in the form of an insertion part into the housing interior of the cartridge housing.

In this case, a preferred embodiment according to the invention makes provision for at least one projection which is orientated axially parallel with the longitudinal housing axis and which projects into the tooth base between two adjacent teeth of the front tooth arrangement, which is provided on the external ring of an adjacent insertion part, to project on the annular shoulder.

Preferred embodiments of the invention make provision for the sanitary insertion cartridge to be in the form of an aerator or to contain an aerator. In particular, in such an aerator, the insertion parts required to form the throughflow of water must be mounted in a positionally precise manner relative to each other in the simplest manner possible.

BRIEF DESCRIPTION OF THE DRAWINGS

Developments according to the invention will be appreciated from the following description of preferred embodiments in connection with the claims and the drawings. The invention is described in even greater detail below with reference to preferred embodiments.

In the drawings:

FIG. 1 shows a sanitary insertion cartridge which is illustrated as a longitudinal section and which is in the form of an aerator in this instance and which comprises a plurality of components, wherein at least individual mutually adjacent components are secured to prevent rotation in a circumferential direction by means of a rotation prevention member, which provides for a front tooth arrangement at at least one of the two adjacent components,

FIG. 2 shows the aerator from FIG. 1 as an exploded perspective view of the components thereof,

FIG. 3 shows individual adjacent components, which are joined together in two assemblies in this case, of the aerator which is shown in FIGS. 1 and 2 ,

FIG. 4 shows an insertion cartridge which is configured in a comparable manner with the aerator from FIGS. 1 to 3 as a longitudinal section, wherein a reduced number of projections project at an inflow-side housing portion of this insertion cartridge, which projections engage in a front tooth arrangement on the external ring of a component which is adjacent at the discharge side,

FIG. 5 shows the aerator from FIG. 4 as an exploded, perspective illustration of the components thereof,

FIG. 6 shows the components, which are assembled to form an assembly with the inflow-side housing portion, of the aerator which is shown in FIGS. 4 and 5 ,

FIG. 7 shows another embodiment of an aerator as a longitudinal section, wherein there projects at the inflow-side housing portion of this aerator at least one projection which is constructed at the free front end thereof in an angular manner and which projects into the front tooth arrangement of an external ring which is provided on the adjacent insertion part at the external circumference,

FIG. 8 shows an inflow-side housing portion of the aerator which is already shown in FIG. 7 , wherein the housing portion is assembled here in an assembly-like manner with two adjacent components which are each in the form of an insertion part,

FIG. 9 shows the assembly which is already shown in FIG. 8 and which comprises components of the aerator which is illustrated in FIG. 7 ,

FIG. 10 shows an additional embodiment of an aerator having a cartridge housing which is assembled from two adjacent housing portions, wherein the housing portions of the cartridge housing of the insertion cartridge illustrated here are releasably connected to each other by means of a snap-fit connection,

FIG. 11 shows a detailed longitudinal section of the insertion cartridge in the form of an aerator from FIG. 10 in the region of the snap-fit connection of the housing portions thereof,

FIG. 12 shows another embodiment of an insertion cartridge which is also in the form of an aerator in this case, wherein there is provided, of the mutually associated adjacent components, on a first component a front tooth arrangement which cooperates with a projection on the adjacent second component and wherein the projections which cooperate with the front tooth arrangements are differently constructed on the second components at the end,

FIG. 13 shows the insertion cartridge in the form of an aerator from FIG. 12 as a perspective detailed view in the region between two inflow-side components of this aerator, wherein the front tooth arrangement which is provided between these adjacent components as a rotation prevention member cooperates with a projection which is constructed in this instance in a right-angled manner at the free end region thereof,

FIG. 14 shows another perspective detailed view of the insertion cartridge from FIGS. 12 and 13 in the region of the rotation prevention member which is provided between a discharge-side housing portion and an insertion part which is adjacent at the inflow side,

FIG. 15 shows a side view of three adjacent components, which are joined to each other, of an aerator, wherein an inflow-side component is in the form of a jet fractionater which is in the form of a perforated plate,

FIG. 16 shows a perspective side view of the assembly which is formed from the three adjacent components from FIG. 15 when viewed toward the outlet front side of this component assembly,

FIG. 17 shows an embodiment, which is modified with respect to FIGS. 15 and 16 , of the perforated plate which acts as a jet fractionater, wherein at the front circumferential edge, which faces a first component which is adjacent at the discharge side, of this perforated plate which is intended as a second component, pin-like projections of a rotation prevention member project, which projections engage in a tooth base between adjacent teeth of the front tooth arrangement which is provided on the first component which is adjacent at the discharge side, and wherein the teeth of the front tooth arrangement which is provided on the first component each engage in a recess, which is provided in the perforated plate which is intended as the adjacent second component,

FIG. 18 shows the perforated plate from FIG. 17 in an embodiment which is modified in relation thereto, wherein the perforated plate in this instance has, at the front side thereof facing the first component which is adjacent at the discharge side, recesses in the form of a return of the rotation prevention member, and

FIG. 19 shows the perforated plate, which is provided as a jet fractionater for an aerator, in an embodiment which is modified with respect to the embodiments according to FIGS. 17 and 18 , wherein, at the front circumferential edge, which faces a first component which is adjacent at the discharge side, of the perforated plate, only the projections, which are orientated in the longitudinal housing direction, of the rotation prevention member project.

DETAILED DESCRIPTION

FIGS. 1 to 14 illustrate different embodiments 101, 104, 107, 110 and 112 of a sanitary insertion cartridge. The insertion cartridges 101, 104, 107, 110 and 112 have a cartridge housing 2 which can either be intermediately arranged in a water line or be inserted in the water outlet of a sanitary outlet fitting. The cartridge housing 2 of these insertion cartridges 101, 104, 107, 110 and 112 have a water inlet 3 which is provided here at the front housing side at the inflow side and a water discharge 4 which is provided at the front housing side at the outflow side. The insertion cartridges 101, 104, 107, 110 and 112 are mounted in a state comprising at least two components 5, 6, 7, 8, 9, 10, of which at least two components abut each other or are connected to each other. In this case, at least two of the components 5, 6, 7, 8, 9 or 10, which are required in order to mount the insertion cartridges 101, 104, 107, 110 and 112, are fixed in the relative position thereof relative to each other in a circumferential direction by means of a rotation prevention member 1. Of the mutually adjacent components 5, 7; 7, 8; 6, 8; 7, 9 and 8, 10 which are secured by means of a rotation prevention member 1, at least one first component has a front tooth arrangement 11, which acts as an axially effective rotation prevention member and which has teeth 12 which are arranged radially relative to the longitudinal housing axis, at the front side thereof facing at least one adjacent second component. A projection which is provided at the adjacent front side of the at least one adjacent second component and which is orientated in the longitudinal housing direction engages in the at least one tooth base 13 between adjacent teeth 12 of this front tooth arrangement 11. The projection, which is provided at the adjacent front side of the at least one adjacent second component, can be in the form of a journal-like projection 14. It is also possible for, at the adjacent front side of the at least one adjacent second component, there to be provided a counter-profiling 15, the projections of which engage in the front tooth arrangement 11 of the adjacent first component. In the embodiments illustrated here, this counter-profiling 15 is also in the form of a front tooth arrangement so that the front tooth arrangement 11 which is provided on the respective first component, on the one hand, and the counter-profiling 15, which is provided at the adjacent front side of the adjacent second component and which is also in the form of a front tooth arrangement, of the rotation prevention member 1 engage in each other in such a manner that the teeth 12 of the first front tooth arrangement 11 provided on the at least one first component engage in the tooth bases 13 of the second front tooth arrangement which is arranged on the at least one adjacent second component of the insertion cartridge and which acts as a counter-profiling 15.

The teeth 12 of the first and/or second front tooth arrangement 11, 15 form projections which each engage in an associated tooth base 13 of the adjacent component.

In the embodiments which are illustrated here and in which a front tooth arrangement 11 of the first component cooperates with a counter-profiling 15 which is also in the form of a front tooth arrangement on the adjacent second component, the teeth 12 of the front tooth arrangements, which are provided on the at least one first component and/or on the at least one adjacent second component, climb radially in an outward direction and, additionally or alternatively, the tooth bases can decline in comparison radially in an outward direction so that these components which are associated with each other in pairs are always also arranged coaxially relative to each other and locate each other automatically and with the correct angle relative to each other with a corresponding pitch and/or suitable tooth gradient/steepness.

An embodiment is possible, although it is not shown here, in which at the at least one first component which is in the form of an insertion part and/or at the at least one adjacent second component, there is provided a central axle stub or orientation stub which is orientated in an axially parallel manner relative to the longitudinal housing axis and which carries the first front tooth arrangement at the front, and wherein the at least one projection, the counter-profiling or the second front tooth arrangement is provided on the adjacent front side of the at least one adjacent second component.

In comparison, FIGS. 1 to 14 show that there is provided at the external circumference of the first components 7, 8 which are in the form of an insertion part a circumferential external ring 16 which carries one of the front tooth arrangements 11, 15 of the rotation prevention member 1 at at least one of the front sides thereof.

The insertion cartridges 101, 104, 107, 110 and 112 shown in FIGS. 1 to 14 have a cartridge housing 2 which—as in this case—is constructed in two pieces or where applicable also in multiple pieces. The cartridge housing 2 of the insertion cartridges 101, 104, 107, 110 and 112 illustrated here has an inflow-side housing portion 5 or 9 and an outflow-side housing portion 6 or 10. The insertion cartridges 101, 104, 107, 110 and 112 illustrated here are in the form of aerators and in particular ventilated aerators. The aerators which are shown in FIGS. 1 to 14 have a jet fractionater 19 which divides the water which flows in via the water supply line over a large number of individual streams. In this case, the jet fractionaters 19 of the insertion cartridges 101, 104, 107, 110 and 112 are in the form of a perforated plate which has a plurality of j et fractionater openings 20. The water which flows to the aerators is divided over the jet fractionater openings 20 of the perforated plate into individual streams and accelerated in such a manner that a reduced pressure is produced at the outflow side of the perforated plate. As a result of this reduced pressure, the ambient air is drawn into the cartridge housing 2 and is mixed with the individual streams in a mixing zone which is arranged at the outflow side of the perforated plate. A flow rectifier in the flow direction which is formed by the insertion parts 7, 8 is arranged downstream of the jet fractionater 19 in the form of a perforated plate of the insertion cartridges 101, 104, 107, 110 and 112. These insertion parts 7, 8 have a grid, net or similar hole structure which are formed by bundles, which intersect each other at intersection nodes 21, of webs 22, 23. The grid structure of the insertion parts 7, 8 shown here is formed by a bundle of concentric webs 22 which intersect at the intersection nodes 21 with the bundle of radial webs 23. The different components of the insertion cartridges 101, 104, 107, 110 and 112 can be orientated relative to each other in such a manner that the individual streams which are produced in the perforated plate strike the intersection nodes 21 of the first insertion part 7 which is adjacent to this jet fractionater 19. The individual streams which are additionally further divided at these intersection nodes 19 of the inflow-side insertion part 7 and which are mixed with ambient air subsequently strike the intersection nodes 21 of the second insertion part 8 which follows in the throughflow direction, wherein these intersection nodes 21 of the grid structure which is provided on the second insertion part 8 are aligned with the throughflow openings on the inflow-side first insertion part 7. While the jet fractionater 19 which is in the form of a perforated plate is integrally formed on the inflow-side housing portion 5 in the insertion cartridges 101, 104, 107 and 112 shown in FIGS. 1 to 14 , which housing portion also carries the inflow-side part-region of the circumferential housing wall, the cartridge housing 2 of the insertion cartridge 110 shown in FIG. 10 has a housing portion 9 which forms the inflow-side front housing side and which is in the form of a perforated plate or a jet fractionater and which can be inserted in the sleeve opening, which is provided at the front inflow side, of a sleeve-like second housing portion 10, wherein the housing portions 9, 10 can be releasably locked to each other. A locking projection 24, which latches in an internally circumferential locking recess 25 of the sleeve-like housing portion 10, is formed circumferentially on the housing portion 9 which is in the form of a perforated plate or a jet fractionater 19 at the external circumference relative thereto. At the front outflow side of the housing portions 6, 10, there is provided a grid-like hole structure which is shown only by way of example for any outlet structure and which comprises webs 17, 18 which are arranged at right-angles relative to each other and which delimit outlet openings which are orientated toward the throughflow openings, in particular the outflow-side insertion part 8. In order to fix the relative position of the adjacent components in the circumferential housing direction, a rotation securing member 1 is provided between the adjacent components 6, 8; 8, 10.

The insertion parts 7, 8 of the insertion cartridges 101, 104, 107, 110 and 112 which are in the form of aerators have at both front sides of the external rings 16 thereof a front tooth arrangement 11. While the front side, facing the adjacent insertion part 8, 7, of the external rings 16 fixes the relative position of the insertion parts relative to each other, the front tooth arrangement which is provided on the inflow-side front edge of the insertion part 7 or on the outflow-side front edge of the insertion part 8 cooperates with the journal-like projections 14 on the inflow-side housing portion 5, 6 or with the counter-profiling 15 at the internal circumference of the outflow-side housing portion 6.

From a comparison of the FIGS. 1 to 3 and 4 to 6 , it is evident that only half as many journal-like projections 14 project at the inflow-side housing portion 5 of the insertion cartridge 104 as are provided in the insertion cartridge 101 according to FIGS. 1 to 3 . From a comparison of FIGS. 1 to 14 , it is evident that the journal-like projections 14 can be constructed in a rounded manner, but also in a rectangular or arrowhead-like manner, on the inflow-side housing portion 5 or on the outflow-side housing portion 10 at the free end thereof.

FIGS. 15 and 16 illustrate three adjacent components 19, 7, 8 which are joined to each other to form an assembly and of which an inflow-side component is in the form of a perforated plate which also acts as a jet fractionater 19 while the two downstream components, which are at the outflow side in relation thereto, are also in the form of insertion parts 7, 8 which have front tooth arrangements 11, 15 at the inflow-side and outflow-side front edges of the external rings 16 thereof. When FIGS. 15, 16 and 18 are viewed together, it becomes clear that the teeth 12, which are provided on the adjacent first component 7, of the front tooth arrangement 11 engage in recesses 27 which are provided at the outflow-side front circumferential edge of the jet fractionater 19 which acts as the second component and which are in the form of returns in this case.

The insertion parts 7, 8 of the component assembly which is shown in FIGS. 15 and 16 also have a grid, net or similar hole structure which are formed by bundles, which intersect each other at intersection nodes 21, of webs 22, 23. The grid structure of the insertion parts 7, 8 which are shown in FIGS. 15 and 16 is also formed by a bundle of concentric webs 22 which intersect each other at the intersection nodes 21 with the bundle of radial webs 23. In order to orientate the different components 19, 7, 8 relative to each other so that the individual streams which are formed in the jet fractionater 19 strike the intersection nodes 21 of the first insertion part 7 adjacent to this jet fractionater 19 and consequently strike precisely against the desired contour of the following component, and therefore the intersection nodes 21 of the grid structure, which is provided on the second insertion part 8, are aligned with the throughflow openings in the inflow-side first insertion part 7, rotation prevention members are provided between the components 19, 7 and 8.

A comparison of FIGS. 17, 18 and 19 makes it clear that at the outflow-side front circumferential edge of the jet fractionater 19 which acts as a second component, additionally or alternatively there may also project projections 14 which engage in at least one tooth base 13 between the adjacent teeth 12 of the front tooth arrangement 11 which is provided on the insertion part 7 which is adjacent at the outflow side.

It will be understood that the adjacent housing portions and/or components of an insertion cartridge can be arranged in a rotationally secure manner relative to each other by uniform or different orientation elements.

LIST OF REFERENCE NUMERALS

-   -   1 Rotation prevention member     -   2 Cartridge housing     -   3 Water inlet     -   4 Water discharge     -   5 (Inflow-side) housing portion     -   6 (Outflow-side) housing portion     -   7 (Inflow-side) insertion part     -   8 (Outflow-side) insertion part     -   9 (Plate-like) housing portion     -   10 (Sleeve-like) housing portion     -   11 (First) front tooth arrangement     -   12 Teeth     -   13 Tooth base     -   14 Journal-like projection     -   15 Counter-profiling (in the form of second front tooth         arrangement)     -   16 External ring     -   17 (First bundle of) webs at the outflow-side front housing side     -   18 (Second bundle of) webs at the outflow-side front housing         side     -   19 Jet fractionater     -   20 Jet fractionater openings     -   21 Intersection nodes     -   22 (Concentric) webs of the net structure of the insertion parts         7, 8     -   23 (Radial) webs of the net structure of the insertion parts 7,         8     -   24 Locking projection (on the insertion cartridge 110)     -   25 Locking recess (in the insertion cartridge 110)     -   26 Annular shoulder (at the internally circumferential housing         wall of the outflow-side housing portion 6, 10)     -   27 Recess     -   101 Insertion cartridge (according to FIGS. 1 to 3 )     -   104 Insertion cartridge (according to FIGS. 4 to 6 )     -   107 Insertion cartridge (according to FIGS. 7 to 9 )     -   110 Insertion cartridge (according to FIGS. 10 and 11 )     -   112 Insertion cartridge (according to FIGS. 12 to 14 ) 

1. A sanitary insertion cartridge (101, 104, 107, 110, 112), comprising: a cartridge housing (2) formed of two or more housing portions which is insertable in a water line or the water outlet of a sanitary outlet fitting, the cartridge housing having at least one water inlet (3) and at least one water discharge (4) at least two components (5, 6, 7, 8, 9, 10) which at least one of abut each other or are connected to each other and of which at least two adjacent ones of said components are fixed in a relative position thereof relative to each other in a circumferential direction by a rotation prevention member (1); at least one of said adjacent components comprises an insertion part (7, 8) that is inserted into the cartridge housing or comprises one of the housing portion (5, 6; 9, 10) of the cartridge housing (2); at least a first one of the at least two adjacent components (5, 6, 7, 8, 9, 10) has, at a front side facing a second one of the adjacent components, a front tooth arrangement (11) of the rotation prevention member (1), said front tooth arrangement (11) including teeth (12); and at least one of (a) at least one of the teeth (12) engages in a recess (27) provided in the second one of the adjacent components, or (b) a projection provided at an adjacent front side of the second one of the adjacent components and which is orientated in a longitudinal housing axis direction, of the rotation prevention member (1) engages in at least one tooth base (13) between adjacent ones of the teeth (12) of the front tooth arrangement (11).
 2. The sanitary insertion cartridge (101, 104, 107, 110, 112) as claimed in claim 1, wherein the recess (27) comprises a return.
 3. The sanitary insertion cartridge (101, 104, 107, 110, 112) as claimed in claim 1, wherein the teeth (12) provided on the first one of the adjacent components are arranged radially relative to the longitudinal housing axis.
 4. The sanitary insertion cartridge (101, 104, 107, 110, 112) as claimed in claim 1, wherein the projection is provided and comprises a plurality of projections which are spaced apart from each other in a circumferential direction at the adjacent front side of the second one of the adjacent components.
 5. The sanitary insertion cartridge as claimed in claim 1, further comprising a counter-profiling (15) of the rotation prevention member that engages in the front tooth arrangement (11) on the first one of the adjacent components, and the counter-profiling (15) is provided at the adjacent front side of the second one of the adjacent components.
 6. The sanitary insertion cartridge (101, 104, 107, 110, 112) as claimed in claim 1, wherein the second one of the adjacent components includes the recess and the projection that form a second front tooth arrangement (15), having teeth and tooth bases therebetween, that mutually engages with the front tooth arrangement (11) at the front side of the first one of the adjacent components to form the rotation prevention member (1).
 7. The sanitary insertion cartridge (101, 104, 107, 110, 112) as claimed in claim 6, wherein the teeth (12) of the front tooth arrangement (11) provided on the first one of the adjacent components engage in tooth bases (13) of the second front tooth arrangement which is arranged on second one of the adjacent components.
 8. The sanitary insertion cartridge as claimed in claim 7, wherein the teeth (12) of at least one of the front tooth arrangement (11) provided on the first one of the adjacent components or the second front tooth arrangement (15) of the second one of the adjacent components at least one of incline radially in an outward direction or the tooth bases (13) decline radially in an outward direction.
 9. The sanitary insertion cartridge as claimed in claim 1, further comprising a central axle stub which is orientated axially parallel with the longitudinal housing axis on the first component which is the insertion part, the axle stub carries the front tooth arrangement at the front side, and the projection is provided at the adjacent front side of the second one of the adjacent components.
 10. The sanitary insertion cartridge (101, 104, 107, 110, 112) as claimed in claim 6, wherein a circumferential external ring (16) which carries the front tooth arrangement or second front tooth arrangement (11; 15) at at least one of the front sides thereof is provided on an external circumference of at least one of the first one of the adjacent components which comprises the insertion part or the second one of the adjacent components.
 11. The sanitary insertion cartridge (101, 104, 107, 110, 112) as claimed in claim 1, wherein the second one of the adjacent components comprises one of the housing portions (5, 6; 9, 10) and the projection is provided on a front edge, facing a housing interior, of said housing portion.
 12. The sanitary insertion cartridge (101, 104, 107, 110, 112) as claimed in claim 1, wherein projection (14) is rounded or angular at a free end thereof.
 13. The sanitary insertion cartridge (101, 104, 107, 110, 112) as claimed in claim 1, wherein the cartridge housing (2) has at least one inflow-side housing opening as the water inlet and the at least one housing opening is closeable by a second component formed as a jet fractionater (19) which has jet fractionater openings (20), said jet fractionater (19) is lockable at an internal housing circumference of the cartridge housing (2).
 14. The sanitary insertion cartridge (101, 104, 107, 110, 112) as claimed in claim 13, wherein at least one projection (14) projects on the jet fractionater (19), the at least one projection (14) is orientated axially parallel with the longitudinal housing axis and cooperates with a front tooth arrangement (11) on an adjacent front edge of an external ring (16) of an adjacent component that comprises the insertion part (7).
 15. The sanitary insertion cartridge (101, 104, 107, 110, 112) as claimed in claim 1, wherein a circumferential external ring (16) which carries the front tooth arrangement or a second front tooth arrangement (11; 15) at at least one of the front sides thereof is provided on at least one of the insertion parts (7, 8) and is displaceably guided along an internal housing circumference in the cartridge housing (2).
 16. The sanitary insertion cartridge (101, 104, 107, 110, 112) as claimed in claim 15, wherein an annular shoulder is provided on an internal housing circumference of the cartridge housing (2) and the annular shoulder (26) acts as a sliding stop during insertion of the at least one component which is in the form of the insertion part (7, 8) into the housing interior of the cartridge housing (2).
 17. The sanitary insertion cartridge as claimed in claim 16, wherein at least one projection (14) which is orientated axially parallel with the longitudinal housing axis and which projects into the tooth base (13) between two adjacent ones of the teeth (12) of the front tooth arrangement (11), which is provided on the external ring (16) of the insertion part that is located adjacently, projects on the annular shoulder (26).
 18. The sanitary insertion cartridge (101, 104, 107, 110, 115) as claimed in claim 1, wherein the sanitary insertion cartridge includes an aerator. 